Logging with V5 Vexcode Pro

[mbrh]

Is there a recommended way to do data logging within Vexcode Pro? For example storing values during PID tuning or the like. Seems straightforward to write to the microSD card, but pulling that out after each run is slow.

Is there a way to make this directly accessible to the connected PC (wired or wirelessly)?

[sazrocks]

You can print to the console (wireless or wired) using standard C++ or C print methods, i.e.
std::cout and printf.

[mbrh]

What is the best way to redirect the console output into a file?

[kaelem]

The simplest way would be to write that data onto a file written on an SD card on the V5 Brain.

You may find these helpful:
https://api.vexcode.cloud/v5/html/classvex_1_1brain_1_1sdcard.html

SD Card Help

Here’s a simple example showing how to use the VCS SD card save and load file API. This saves some information into a file called “test.h” on the SD card and then reads it back again. #include "robot-config.h" // storage for some information to save uint8_t myTestData[ 100 ]; uint8_t myReadBuffer[ 1000 ]; int main() { // set the test data to something detectable for(int i=0;i<100;i++) { myTestData* = i * 2; } // write test data to SD Card int nWritten…

Edit:

You can also use the standard C++ std::ofstream to write to a file onto the V5 SD Card, Which is probably an easier method in my honest opinion.

https://www.learncpp.com/cpp-tutorial/basic-file-io/
https://www.cplusplus.com/reference/fstream/ofstream/

[mbrh]

We are trying to avoid pulling the SD Card after every run. Printing to the console does this, but it would be nice to pipe/redirect it to a file rather than cur and paste.